Recirculating system

[Mark Zig]

Does anyone know if there is a way to convert the recirculating system to a fully closed system? The supposed 90-10% that GM claims is totally bogus. I get lots of diesel and smoke fumes in the cab while operating in recirculating mode. I own a Honda Password also and get zero fumes in the cab.

[redwngr]

Does the Honda have a carbon filter? 

 

I wonder if the directional door is working correctly?

Edited November 19, 2020 by redwngr

[Mark Zig]

Not sure of the Carbon filter in the Honda.Door direction not sure of either. What I’m sure of is anything not 100% closed in recirculating mode allows bad and smelly air from outside into the cab. I wish there was an after market fix or a recall from GM to correct this issue of many years. I’ve reached out to GM quality control and talked to them about this issue. It’s anyone’s guess as to what they might do. If anything?